At least, they think they're cooking. Earlier studies have already shown that when taught by humans, bonobos, a close relative of chimps, can learn to cook their food. But now a new study indicates that the primates can develop the concept of cooking and the patience for delayed gratification all on their own.
The research was conducted by Alexandra Rosati, an evolutionary biologist at Yale, and Felix Warneken, a psychologist at Harvard University, at a chimpanzee sanctuary in the Democratic Republic of the Congo. The team didn't want to leave chimps to their own devices around real fire for fear that they would injure themselves, so instead they gave the animals a fake "oven" and some raw sweet potato.
"You can think of it as a chimpanzee microwave where, basically, if the chimpanzees placed raw food in the device and then we shook the device, [the food] came out cooked," Rosati told NPR's The Salt.
What actually happened was that the researchers had already put pre-cooked food in a hidden compartment that opened when the device was shaken. But to the chimps, the effect was as if their raw food had been cooked. And over time, the chimps—who apparently prefer cooked sweet potatoes—learned to save their raw food for the chance to "cook" it.
"At first, the chimps pretty much ate the food. But then you almost could see them have this insight like, Oh, my goodness, I can put it in this device and it comes back cooked," Rosati said. And further experiments proved that chimps understood not just the shake-for-food aspect but also the "cooking" behind it. When given cooked sweet potato from the start, the chimps just ate the handout happily. But faced with a raw carrot, they showed self-restraint, holding on to the food until they had a chance to "cook" it.
Scientists are excited by this insight into how and when humans may have developed the ability to mix food and fire to develop cooking. Richard Wrangham, a professor of biological anthropology who has written on the subject said, "What we're seeing here is that the chimps are surprisingly similar to humans, even though the whole process of cooking seems like something that is a huge divide between humans and other animals."
Dogs: They’re cute, they’re cuddly … and they can smell fear!
Today on Scatterbrained, John Green and friends go beyond the floof to reveal some fascinating facts about our canine pals—including the story of one Bloodhound who helped track down 600 criminals during his lifetime. (Move over, McGruff.) They’re also looking at the name origins of some of your favorite dog breeds, going behind the scenes of the Puppy Bowl, and dishing the details on how a breed gets to compete at the Westminster Kennel Club Dog Show.
You can watch the full episode below.
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For centuries, dogs were dogs and cats were cats. They did things like bark and drink water and lay down—actions that pet parents didn’t need a translator to understand.
Then the internet arrived. Scroll through the countless Facebook groups and Twitter accounts dedicated to sharing cute animal pictures and you’ll quickly see that dogs don’t have snouts, they have snoots, and cats come in a colorful assortment of shapes and sizes ranging from smol to floof.
Pet meme language has been around long enough to start leaking into everyday conversation. If you're a pet owner (or lover) who doesn’t want to be out of the loop, here are the terms you need to know.
You know your pet is fully relaxed when they’re doing a sploot. Like a split but for the whole body, a sploot occurs when a dog or cat stretches so their bellies are flat on the ground and their back legs are pointing behind them. The amusing pose may be a way for them to take advantage of the cool ground on a hot day, or just to feel a satisfying stretch in their hip flexors. Corgis are famous for the sploot, but any quadruped can do it if they’re flexible enough.
Emma McIntyre, Getty Images for ASPCA
Unlike most items on this list, the word derp isn’t limited to cats and dogs. It can also be a stand-infor such expressions of stupidity as “duh” or “dur.” In recent years the term has become associated with clumsy, clueless, or silly-looking cats and dogs. A pet with a tongue perpetually hanging out of its mouth, like Marnie or Lil Bub, is textbook derpy.
If you’ve ever caught a cat or dog poking the tip of its tongue past its front teeth, you’ve seen a blep in action. Unlike a derpy tongue, a blep is subtle and often gone as quickly as it appears. Animal experts aren’t entirely sure why pets blep, but in cats it may have something to do with the Flehmen response, in which they use their tongues to “smell” the air.
Mlems and bleps, though very closely related, aren’t exactly the same. While blep is a passive state of being, mlem is active. It’s what happens when a pet flicks its tongue in and out of its mouth, whether to slurp up water, taste food, or just lick the air in a derpy fashion. Dogs and cats do it, of course, but reptiles have also been known to mlem.
Some pets barely have any fur, and others have coats so voluminous that hair appears to make up most of their bodyweight. Dogs and cats in the latter group are known as floofs. Floofy animals will famously leave a wake of fur wherever they sit and can squeeze through tight spaces despite their enormous mass. Samoyeds, Pomeranians, and Persian cats are all prime examples of floofs.
According to some corners of the internet, dogs don’t bark, they bork. Listen carefully next time you’re around a vocal doggo and you won’t be able to unhear it.
Speaking of doggos: This word isn’t hard to decode. Every dog—regardless of size, floofiness, or derpiness—can be a doggo. If you’re willing to get creative, the word can even be applied to non-dog animals like fennec foxes (special doggos) or seals (water doggos). The usage of doggo saw a spike in 2016 thanks to the internet and by the end of 2017 it was listed as one of Merriam-Webster’s “Words We’re Watching.”
Some pets are so adorably, unbearably tiny that using proper English to describe them just doesn’t cut it. Not every small pet is smol: To earn the label, a cat or dog (or kitten or puppy) must excel in both the tiny and cute departments. A pet that’s truly smol is likely to induce excited squees from everyone around it.
Like doggo, pupper is self-explanatory: It can be used in place of the word puppy, but if you want to use it to describe a fully-grown doggo who’s particularly smol and cute, you can probably get away with it.
We’ve already established that doggos go bork, but that’s not the only sound they make. A low, deep bark—perhaps from a dog that can’t decide if it wants to expend its energy on a full bark—is best described as a boof. Consider a boof a warning bark before the real thing.
Snoot was already a dictionary-official synonym for nose by the time dog meme culture took the internet by storm. But while snoot is rarely used to describe human faces today, it’s quickly becoming the preferred term for pet snouts. There’s even a wholesome viral challenge dedicated to dogs poking their snoots through their owners' hands.
Have you ever seen a dog snoot so cute you just had to reach out and tap it? And when you did, was your action accompanied by an involuntary “boop” sound? This urge is so universal that boop is now its own verb. Humans aren’t the only ones who can boop: Search the word on YouTube and treat yourself to hours of dogs, cats, and other animals exchanging the love tap.